https://bugzilla.kernel.org/show_bug.cgi?id=194579
Bug ID: 194579
Summary: AMDGPU: Possible size overflow detected by PaX in
ttm_bo_handle_move_mem
(drivers/gpu/drm/ttm/ttm_bo.c:388)
Product: Drivers
Version: 2.5
Kernel Version: 4.9.9
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-...@kernel-bugs.osdl.org
Reporter: m...@foxxx0.de
Regression: No
While trying out the experimental amdgpu support for Southern Islands radeon
cards, I stumpled upon this issue due to using the grsec patchset.
It seems there is a size overflow:
kernel: PAX: size overflow detected in function ttm_bo_handle_move_mem
drivers/gpu/drm/ttm/ttm_bo.c:388 cicus.459_185 max, count: 5, decl: offset;
num: 0; context: ttm_buffer_object;
After addings a debug printk():
kernel: PAX start:7fffffffffffffff type:1 offset:80000000
Would be great if someone could provide some insight and confirm that it is
undesired behaviour.
Best,
Thore
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